I wasa thinking about making a 1 or two gallon batch of a Porter to see what my recipe came out as and also because I don't have the money or the equipment to have two full batches going at once right now. I was thinking about just getting a a smaller food grade 1 or 2 gallon bucket and then making a hole for the airlock myself. Or, I also found that a Carlo Rossi (bleh) bottle is a little buit more than a gallon and I figured I could use that as well.

Got any ideas for a one or two gallon batch fermentor?

__________________"All other nations are drinking Ray Charles beer and we are drinking Barry Manilow."

Here in the UK 1 gallon glass wine fermenters (called demijohns) are really easy to find and can be picked up cheaply. Looking at the big Carlo Rossi bottles it's pretty much the same design - and if you can pick them up for free then they're even better!
Plastic food grade buckets work great for primary, use the Carlo Rossi bottles for secondary.